please can someone help me :( i just need to know which two numbers make 30 but one of them is 2 more than the other

An an average person has 6×10 by the power of two as many red blood cells as white blood cells a small sample of the blood has 7×10 by the power of three white blood cells about how many red blood cells are in the sample

The transitive property of equality states that: o if a = b, then bra o if a = b, then ac = bc o if a = b and b= c, then a = if a = b and c= c, then a + b = b + c

Which of the following is missing in the explicit formula for the compound interest geometric sequence below?